I took apart an iPhone 5C dock and was using that to get a line out connection from my iPad mini. It was working beautifully. But then I just upgraded to the iPad mini Retina and it no longer works. It's like the universe is against me. The iPad mini Retina will still charge, but no audio will play through the line out. When the iPhone 5C dock circuit board is plugged into my iPad mini Retina the iPad stops playing music on its internal speakers as though it recognizes the line out connection, but no audio is being piped through to my external speakers that I have the line out connected to. If I unplug the iPad mini Retina and plug in my iPhone 5, it charges and plays music fine. So I can't figure out what's going on and why my iPhone 5 AND iPad mini (without retina) works fine, but the iPad mini with Retina display will not play the audio. Any ideas??? I'm totally screwed because I don't know of any other way to get line out audio from my iPad mini Retina.